Question

In the following equation, identify Arrhenius acids or bases and Bronsted-Lowry acids or bases. NH3 + H2O --> NH4 +1 + OH-1

Answer 1

There are no Arrhenius acids or bases. NH₃ is a Brønsted-Lowry base. H₂O is a Brønsted-Lowry acid

To see why NH₃ is not an Arrhenius base, visit

http://socratic.org/questions/why-is-nh3-an-arrhenius-base

You can learn how to identify Brønsted-Lowry acids an bases at

http://socratic.org/questions/what-are-bronsted-lowry-acids-and-bases

In your equation

NH₃ + H₂O → NH₄⁺ + OH⁻

The NH₃ has become NH₄⁺. It has one more H atom. It has accepted a proton (H⁺), so it is a Brønsted-Lowry base.

The H₂O has become OH⁻. It has one less H atom. It has donated a proton (H⁺), so it is a Brønsted-Lowry acid.

Hope this helps.